■
Active cooling: Parallel offset decreases -1. If a room
sensor is used, the set desired temperature decreases
by 1K.
Position 2: Low price
■
Heating: Parallel offset increases by +1. If a room
sensor is used, the set desired temperature increases
by 1K.
■
Hot water: Does not change comfort mode. The
HW_stop-value is removed and the hot water is
charged until the hot water demand ceases due to
the condenser's conditions.
■
Pool: Pool start and stop temperatures increase by
1K.
■
Active cooling: No change.
Position 3: Normal price
■
Heating: No change.
■
Hot water: No change.
■
Pool: No change.
■
Active cooling: No change.
Position 4: High price
■
Heating: Parallel offset decreases by -1. If a room
sensor is used, the set desired temperature increases
by -1K.
■
Hot water: Set to comfort mode economy.
■
Pool: Blocked.
■
Active cooling: Blocked.
USB
Supported devices
The only USB devices with security that are supported
are USB memories without special software, such as:
■
Kingston DataTraveler 1/2/4 GB
In theory, the control system supports all devices in the
mass storage class, that is any hard discs and USB
memories that do not use special software or drivers.
The other factor that limits which devices can be used
is the file system. The file systems used with USB
memories are often FAT16 (most common with
memories <= 2 GB) and FAT32 (most common with
memories >= 4 GB), both these file systems are suppor-
ted at present. External hard discs often use NTFS as a
file system which makes it probable that an existing
USB hard disc would not work without being format-
ted.
To bear in mind when using USB
When a program file, log setting file or settings file is
copied to a USB drive from Windows it is not always
guaranteed that the file has been correctly saved unless
a "safe removal" has been carried out, therefore the
memory stick should not be pulled out of the machine
before the operation is completed and Windows in-
forms that "It is now safe to remove the device * from
the system".
When data logging to a USB drive, data can be corrup-
ted or lost if the USB drive is not removed correctly.
Correct procedure is to deactivate logging and then
wait 3 seconds before the USB drive is pulled out of
the machine
NIBE™ VVM 320Chapter 4 | Description of functions24
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